28 August 2022 to 1 September 2022
Serbian Academy of Sciences and Arts – SASA
Europe/Belgrade timezone

Influence of magnetic field on the growth mechanisms of sodium chlorate crystals

S06-CMPSP-231
30 Aug 2022, 18:00
1h 30m
Restaurant (Serbian Academy of Sciences and Arts)

Restaurant

Serbian Academy of Sciences and Arts

Board: S06-CMPSP-231
Poster presentation S06 Condensed Matter Physics and Statistical Physics Poster session

Speakers

Ms Milica Milojević (Faculty of Physics)Dr Branislava Vučetić (Faculty of Physics)

Description

The mechanisms of crystal growth depend on the temperature and supersaturation of the solution. As a result of their competition, different growth regimes may occur. The results of previous studies have shown that in the range of supersaturation of 0.66−1.56%, the {100} sodium chlorate crystal faces grow according to the model of spiral growth [1]. In order to determine the possible influence of the static magnetic field on the growth mechanisms of sodium chlorate crystals, two groups of experiments were performed in the supersaturation range of 0.89-1.56%. In the first group of experiments, crystals were nucleated and grown under zero-field conditions in a specific supersaturation range. In the second group of experiments, crystal growth was performed in the same supersaturation range, but at an applied magnetic field of 55±3 mT. The most common method for analyzing crystal growth mechanisms is to analyze the (R,σ) dependence, where R is the growth rate in <100> and σ is the supersaturation of the solution. Preliminary results of the analysis of this dependence for crystals grown under zero-field conditions show that the observed sodium chlorate crystals grew according to the Chernov's model of growth, i.e., growth by screw dislocations, while the crystals grew in the magnetic field according to the power law R~σ^n. The obtained results will be discussed in accordance with the theories of crystal growth.

References
1. Radiša, B. Z., Mitrović M. M., Misailović B. M., & Žekić A. A. (2016). Investigation of growth mechanisms of sodium chlorate crystals from aqueous solutions. Industrial & Engineering Chemistry Research, 55(39), 10436-10444.

Primary authors

Ms Milica Milojević (Faculty of Physics) Prof. Andrijana Žekić (Faculty of Physics)

Co-authors

Dr Biljana Maksimović (Faculty of Physics) Dr Branislava Vučetić (Faculty of Physics) Prof. Mićo Mitrović (Faculty of Physics)

Presentation materials